Connector for electric conductors.



Gaga

H. H. RUSSELL.

CONNECTOR FOR ELECTRIC GONDUGTORS.

APPLICATION FILED MAR. 21, 1913.

1,1 1 5, 1 1 4. Patented 00b. 27, 191 1 UNITED STATES PATENT "OFFICE.

HENRY HARDING RUSSELL, OF CHICAGO, ILLINOIS, ASSIGNOR TO ELECTRIC SPECIAL- TIES COMPANY, OF CHICAGO, ILLINOIS.

CONNECTOR FOR ELECTRIC CONDUCTORS.

Specification of Letters Patent.-

Patented Oct. 27, 1914.

To all whom it may concern:

Be it known that I, HENRY HARDING Rus- SELL, a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Connectors for Electric Conductors, of which the following is a specification.

My invention relates to means for connecting electrical conductors, and has for one of its objects the provision of a device of this character, whereby the circuit connections may be quickly made and broken even when under high temperature in a simple and cilicient manner, without danger of permanently destroying or damaging the connecting device.

A further object of my invention is to provide a connector having means for preventing fraying or damage to the insulation of the connecting wires or cords.

.A still further object of my invention resides in the particular arrangement and combination of parts hereinafter more fully described and claimed.

In the accompanying drawing in which a simple form of my invention is shown, Figure 1 is aplan view of a connector constructed according to my invention. Fig. 2 is an end elevation of the device shown in Fig. 1. Fig. 3 is a section taken on the line A-A of Fig. 2. Fig. 4 is a view showing the terminal construction at the ends of the wires before being embedded in the socket piece. Fig. 5 is a section of one of the wire terminal pieces taken on the same plane as the view shown in Fig. 3. Fig. 6 is an end elevation of the screw piece 3 best shown in Fig. 5. Fig. 7 is a view of a modification of retaining the spring protector 7 in place.

Re erring to the drawings: 1 represents a block of non-conducting heat resisting material, adapted to receive the tubular metallic split sleeves 2, which in turn are threaded on the inside of one end to receive the screw member 3 having a flattened end 4;, and a hole 5 therethrough to receive the wire strands 6, which are clenched into contact with the metallic sleeve 2 by threading the wire strands 6 through the hole 5, and doubling them back as shown in Fig. 5, and screwing the threaded member 3 into the metallic sleeve. The cord 9 contains two electrical conductors 12, which separate a short distance before entering the block 1.

Encircling the said separated conducting strands are two coil springs 7 separated from the metallic sleeves 2 by the insulating ring member 8. The non-conducting block 1 is threaded for a short distance in a hole made therein to receive the metallic sleeves, and to also receive a portion of the springs 7 by being screwed therein, the springs being held in place at the other ends by a third spring 10 placed upon the cord and in turn held in place by a fixed ring 11 as is shown in Figs. 1 and 4, or may be held in place by a cap piece 13 having a fixed position upon the main cord as is shown in Fig. 7.

I claim:

1. A connector for electrical conductors comprising in combination, an insulating block of heat resisting material divided into one or more compartments and having threaded apertures leading thereto, split metallic spring sleeves disposed in said compartments, electric conductors leading thereto, spiral springs disposed on said conductors but insulated therefrom and adapted at one end to be received in the threaded apertures in said insulating block whereby they are retained in said block, and a member secured to said conductors and embracing the other ends of said spiral spring means, whereby the said spiral springs are secured in place on said conductors, substantially as described.

2. A connector for electric conductors comprising in combination, an insulating block of heat resisting material having one or more compartments therein threaded at one end to receive a spiral spring member, a split spring sleeve of substantially cylindrical shape disposed in each of said com-.

partments and having a female threaded portion at one end thereof, conductors leading to said split spring sleeves and carrying at one end male threaded nipples attached thereto and adapted to be screwed into the said female threaded portions of the spring sleeves, spiral spring members disposed over each of said conductors and retained at one end in the threaded portion of the said block of heat resistin material and secured to the conductors at t e other end, and insulation interposed between said spiral spring members and the said conductors, substantially as described.

3. A connector for electric conductors comprising in combination, an insulating block of heat resisting material having compartments therein for the reception of conductors, said compartments belng threaded at one end to receive and retain a spiral spring member, split spring sleeves having a female threaded portion at one end thereof disposed in said compartments and having conductors leading thereto, a male threaded hollow nipple adapted to screw into the female threaded portion and having a wall portion adapted to have the end of the conductor bent thereover and be approximately adjacent the wall of the said female portion whereby the end of said conductor will be pinched therebetween in screwing in the said nipple, spiral spring members disposed on said conductors and retained in the threaded end of said compartments and having their other ends at tached to said conductors, insulation interposed between said conductor and the spiral spring member, and insulation interposed between the said spiral spring member and said split spring sleeves, substantially as de scribed.

4. A connector for electrical conductors comprising in combination, an insulating block of material divided into one or more compartments and having threaded apertures leading thereto, split metallic spring sleeves disposed in said compartments, electric conductors leading thereto, spiral springs disposed on said conductors but insulated therefrom and adapted at one end to be received in the threaded apertures in said insulating block whereby they are retained in said block, and a member. secured to said conductors and embracing the other ends of said spiral spring means, whereby the said spiral springs are secured in place on said conductors, substantially as described.

5. A connector for electric conductors comprising in combination, an insulating block of material havin 'one or more compartments therein threaded at one end to receive a spiral spring member, a split spring sleeve of'substantially cylindrical shape dis- I 6. A connector for electric conductorscomprising in combination, an insulating block of material having compartments therein for the reception of conductors, said compartments being threaded at one end to receive and retain a spiral spring member, split spring sleeves having a female threaded portion at one end thereof disposed in said compartments and having conductors leading thereto, a male threaded hollow nipple adapted to screw into the female threaded portion and having a wall portion adapted to have the end of the conductor bent there over and be approximately adjacent the wall of the said female portion whereby the end of said conductor will be pinched therebetween in screwing in the said nipple, spiral spring members disposed on said conductors andretained in the threaded end of said compartments and having their other ends attached to said conductors, insulation interposedjbetween said conductor and the spiral spring member, and insulationinterposed between the. said spiral spring member and said split spring sleeves, substantially as described. In testimony whereof I afix my signature in presence of two witnesses.

HENRY HARDING RUSSELL.

Witnesses:

llnwm D. GRoAK, W C. Gnon'rzINenR. 

